Marechal Cunha Machado International Airport

SBSL / SLZ

São Luís, BR

Current TAF Forecast

Raw TAF:
TAF SBSL 142027Z 1500/1524 05007KT 7000 BKN017 FEW025TCU TN24/1509Z TX30/1515Z BECMG 1500/1502 36005KT 8000 SCT017 TEMPO 1502/1512 29005KT 4000 BR SCT010 BECMG 1512/1515 05007KT SCT020 FEW025TCU TEMPO 1516/1522 13008KT 4000 TSRA BKN017 FEW025CB RMK PHC

Detailed TAF Table

Parameter
Fri
02:00Z
+-1h
Fri
03:00Z
+0h
Fri
04:00Z
+1h
Fri
05:00Z
+2h
Fri
06:00Z
+3h
Fri
07:00Z
+4h
Fri
08:00Z
+5h
Fri
09:00Z
+6h
Fri
10:00Z
+7h
Fri
11:00Z
+8h
Fri
12:00Z
+9h
Fri
13:00Z
+10h
Fri
14:00Z
+11h
Fri
15:00Z
+12h
Fri
16:00Z
+13h
Fri
17:00Z
+14h
Fri
18:00Z
+15h
Fri
19:00Z
+16h
Fri
20:00Z
+17h
Fri
21:00Z
+18h
Fri
22:00Z
+19h
Wind Dir
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
50°
NE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
50°
NE
Wind Speed
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
7 kt
Visibility
7 km
7 km
7 km
7 km
7 km
7 km
7 km
7 km
7 km
7 km
7 km
7 km
7 km
7 km
4 km
4 km
4 km
4 km
4 km
4 km
7 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
Thunderstorm Rain
TSRA
☀️ Clear
Clouds
BKN017
FEW025TCU
BKN017
FEW025TCU
BKN017
FEW025TCU
BKN017
FEW025TCU
BKN017
FEW025TCU
BKN017
FEW025TCU
BKN017
FEW025TCU
BKN017
FEW025TCU
BKN017
FEW025TCU
BKN017
FEW025TCU
SCT020
FEW025TCU
SCT020
FEW025TCU
SCT020
FEW025TCU
SCT020
FEW025TCU
BKN017
FEW025CB
BKN017
FEW025CB
BKN017
FEW025CB
BKN017
FEW025CB
BKN017
FEW025CB
BKN017
FEW025CB
SCT020
FEW025TCU
Ceiling
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
2,500 ft ⛈️
TCU Base
2,500 ft ⛈️
TCU Base
2,500 ft ⛈️
TCU Base
2,500 ft ⛈️
TCU Base
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
1,700 ft
AGL
2,500 ft ⛈️
TCU Base
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR IFR IFR MVFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:04Z
🌙
Night
🌅 06:04Z
🌅
Dawn
🌅 06:04Z
☀️
Day
🌅 06:04Z
☀️
Day
🌅 06:04Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:55Z
☀️
Day
🌇 17:55Z
☀️
Day
🌇 17:55Z
🌇
Dusk
🌇 17:55Z
🌙
Night
🌇 17:55Z
🌙
Night
🌙
Night
🌙
Night
Flight Rules
VFR: Visual Flight Rules
MVFR: Marginal VFR
IFR: Instrument Flight Rules
LIFR: Low IFR
Ceiling Colors
Red: < 500ft
Amber: 500-1000ft
Blue: 1000-3000ft
Green: > 3000ft
⛈️ TCU: Towering Cumulus
🌩️ CB: Cumulonimbus
+Nh: Hours from now%: Probability of occurrenceAGL: Above Ground Level

Forecast Periods

BASE
MVFR
Wind
50° at 7 kt
Visibility
7 km
Clouds
BKN017 FEW025TCU
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Northeast (50°) at 7 kt. Visibility will be good at 7 km. Broken clouds at 1700 feet, Few clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 00:00Z - 02:00Z
MVFR
Wind
360° at 5 kt
Visibility
8 km
Clouds
SCT017
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 5 kt. Visibility will be good at 8 km. Scattered clouds at 1700 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 02:00Z - 12:00Z
IFR
Wind
290° at 5 kt
Visibility
4 km
Weather
Mist
Clouds
SCT010
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the West-Northwest (290°) at 5 kt. Visibility will be moderate at 4 km. Weather conditions: Mist. Scattered clouds at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 12:00Z - 15:00Z
MVFR
Wind
50° at 7 kt
Clouds
SCT020 FEW025TCU
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Northeast (50°) at 7 kt. Scattered clouds at 2000 feet, Few clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 16:00Z - 22:00Z
IFR
Wind
130° at 8 kt
Visibility
4 km
Weather
Thunderstorm Rain
Clouds
BKN017 FEW025CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the Southeast (130°) at 8 kt. Visibility will be moderate at 4 km. Weather conditions: Thunderstorm Rain. Broken clouds at 1700 feet, Few clouds at 2500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

📚 Understanding TAF Forecasts

Terminal Aerodrome Forecast (TAF) provides detailed weather forecasts specifically for aviation operations. Our system translates complex meteorological codes into plain English to help pilots of all experience levels understand forecasted conditions.

What TAF Includes:

  • • Wind direction, speed, and gusts
  • • Visibility in statute miles or kilometers
  • • Weather phenomena (rain, snow, fog, thunderstorms)
  • • Cloud coverage types and altitudes
  • • Forecast changes with timing
  • • Flight rules categories (VFR/IFR)

Change Indicators Explained:

  • BASE - Main forecast conditions
  • FM - Permanent change from specific time
  • BECMG - Gradual change over 2-4 hours
  • TEMPO - Temporary changes (less than 1 hour)
  • PROB30/40 - 30% or 40% probability

🛩️ Flight Rules Categories

VFR

Visual Flight Rules

  • • Ceiling ≥ 3000 ft
  • • Visibility ≥ 5 miles
  • • Good for visual flying

MVFR

Marginal VFR

  • • Ceiling 1000-3000 ft
  • • Visibility 3-5 miles
  • • Caution for VFR

IFR

Instrument Flight Rules

  • • Ceiling 500-1000 ft
  • • Visibility 1-3 miles
  • • Instruments required

LIFR

Low IFR

  • • Ceiling < 500 ft
  • • Visibility < 1 mile
  • • Challenging conditions

💡 TAF Reading Tips

For Student Pilots:

  • • Focus on the plain English explanations above
  • • Pay attention to flight rules categories
  • • Look for wind direction relative to runway headings
  • • Check for temporary conditions (TEMPO)

For Experienced Pilots:

  • • Cross-reference with raw TAF for precise timing
  • • Consider probability forecasts for alternate planning
  • • Monitor BECMG periods for gradual changes
  • • Always check current METAR vs TAF forecast

Important: TAF forecasts should always be supplemented with current METAR observations, PIREPs, and other weather information for complete situational awareness. Weather can change rapidly, and forecasts have inherent limitations.